%A"Alvear, J" %A"Salazar, G" %A"Berlanga, R [Instituto de Nutricion y Tecnologia de los Alimentos, Universidad de Chile, Laboratorio de Isotopos Estables, Santiago de Chile (Chile)]" %A"Santos, M de los [Consultorio Recreo Comuna de San Joaquin, Santiago de Chile (Chile)]" %D2000 %I; International Atomic Energy Agency, Section of Nutritional and Health-Related Environmental Studies, Vienna (Austria) %2 %J[] %K60 APPLIED LIFE SCIENCES, ANIMAL GROWTH, ENERGY DENSITY, INFANTS, ISOTOPE APPLICATIONS, LACTATION, MAMMARY GLANDS, MILK, NUTRITION %PMedium: ED; Size: page(s) 34-47 %TBreast feeding and growth in a group of selected 0 to 24 months infants %XWHO is undertaking a combined growth study in several countries, in order to establish adequate growth curves for breast-feeding infants. Present growth charts in use, were obtained in a sample of breast and artificial feeding infants, which have overestimated the growth needs. In our country during the last two decades the number of mothers who decide to breast-feed their infants has permanently grown, due to the implementation of health care programs that promote, mother-infant interaction tight after birth, in all Public Hospitals, and education programs for the mothers, during both antenatal and post natal control of mother and child. The last figures obtained in a country sample of 10000 mother-infant pair, shows that 45% of the mothers are exclusively breast-feeding their infants at 6 months of age. This figure could increase if our infants were evaluated by the adequate charts, because it is of common use that many health professionals suggest to stop breast-feeding because the infant is not growing according the charts in use. The anthropometric study proposed by WHO will benefit considerably by adding determination of breast-milk intake using isotopic dilution of deuterium, a standard procedure proposed by Coward et al and extensively used in our country. The proposed study will also include milk composition (fat, protein and lactose) and energy density of milk to correlate energy supply, milk volume and growth. (author) %0Conference %NNAHRES-55;TRN: XA0056158053127 %1 %CIAEA %Rhttps://doi.org/ TRN: XA0056158053127 INIS %GEnglish